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Biomedical subjects

E Nikodémusz

Publications and source records attributed to E Nikodémusz.

11 recordsLinked to original sources
PubMed1995

Variations in the milk yield and milk composition of dairy cows during lactation.

Variations in the milk yield and milk composition of a dairy cow colony (n = 23) were analyzed during 11 months of lactation. Milk yield followed a characteristic decreasing pattern in negative correlations with solid components (milk protein, lactose, total solids, milk fat). Titrable acidity (degree SH) was significantly (p < 0.1) higher in the milk of fresh-milking cows and it correlated negatively with lactose and positively with milk protein, milk fat and total solids. The concentrations of Zn, Fe and Cu tended to decrease, while Mn showed insignificant variation during lactation. Milk vitamin A showed a significant positive whilst milk vitamin E had a negative correlation with milk fat.

Animal Feed↗
PubMed1995

Variations in the yield, composition and somatic cell count of ewe's milk during lactation.

Variations in the yield, composition and somatic cell count of milk were studied in 30 grazing ewes, representing the Pleven F1 x East-Friesian Blackface, Pleven F1 and Merino genotypes, during five months of lactation. The somatic cell count (SCC) correlated negatively with milk yield and lactose whilst positively with milk protein and milk fat, except for Pleven F1 ewes which showed these correlations with reversed values. The highest milk yield with the lowest SCC was shown by the Pleven F1 x East-Friesian Blackface genotype. Lactose concentration varied in a significant negative correlation with the neutral detergent fibre content of the grass.

Animals↗
PubMed1994

Variations in milk somatic cell count and haematologic values of dairy cows during lactation.

Variations in milk somatic cell count (SCC) and haematologic values were studied in a dairy cow colony of the Holstein-Friesian and Hungarian Red-Spotted breeds (n = 23) from May 1992 to July 1993. Milk and blood samples were taken approximately at monthly intervals and data were assigned into ten lunar months of lactation. After a maximum in month I, SCC dropped abruptly in month II and continued to decline through the subsequent four months, then it again tended to increase through months VII-X. The SCCs varied within the physiological range throughout the lactation period parallel with red blood cells and white blood cells constituting a major segment of the somatic cell population. Positive correlations were recorded between SCC and the blood variables (packed cell volume, red blood cell count, white blood cell count). The lactation pattern of SCC was comparable to previous observations.

Animals↗
PubMed1991

Age-related variations in some blood parameters of geese.

Blood samples from a total of 44 geese of the Hungarian breed, representing three age groups (3 months old, 6 months old, and adult) and originating from the Babat Goose Farm, were examined for packed cell volume (PCV), differential count, haemoglobin content, and serum levels of glucose, total protein, total lipid, calcium and phosphorus. The results revealed significant age-related variations in PCV, proportions of lymphocytes and eosinophils, total protein, total lipid, calcium and phosphorus. The changes were comparable to those obtained for 3 months old and adult Landes geese.

Aging↗
PubMed1982

Pathological features of 3-chloro-4-methyl benzamine HCl toxicity in rooks (Corvus frugilegus L.) and pheasants (Phasianus colchicus L.).

Gross and microscopic changes in response to single po. doses of avicide 3-chloro-4-methyl benzamine HCl were studied in rooks (Corvus frugilegus L.) and pheasants (Phasianus colchicus L.). The observed changes followed a dose- and survival time related pattern and rooks were considerable more susceptible than pheasants to the toxicity of the compound. No effect was found in rooks and pheasants which survived safely 0.7 to 1.0 and 7.0 to 10.0 mg/kg doses, respectively. Early acute effect, in rooks died from 7.0 to 16.0 mg/kg within 16 to 18 h, included: congestion of the major organs, fatty degeneration of the liver, and extensive parenchymal degeneration of the kidney, particularly the proximal tubular epithelial cells. Progressive late effect developed in rooks and pheasants at 2.2 to 5.0 and 16.0 to 120.0 mg/kg doses, respectively, which died in coma between 32 to 80 h. It was characterized by a grayish white, frost-like material of uric acid overlaying the serosal surfaces of the various organs, accompanied by sterile inflammation and necrosis in the affected and adjacent tissues. Few urate deposition was also seen in some of the kidneys. Infrequently, interstitial pneumonia did also occur. The lesions produced by the toxic effect of the test compound seemed to be analogous to that of avian visceral gout.

Animals↗